1113042043 has 2 divisors, whose sum is σ = 1113042044. Its totient is φ = 1113042042.

The previous prime is 1113042031. The next prime is 1113042137. The reversal of 1113042043 is 3402403111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113042043 is a prime.

It is a super-2 number, since 2×1113042043² = 2477725178971227698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1113042043.

It is not a weakly prime, because it can be changed into another prime (1113046043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556521021 + 556521022.

It is an arithmetic number, because the mean of its divisors is an integer number (556521022).

Almost surely, 2^1113042043 is an apocalyptic number.

1113042043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113042043 is an equidigital number, since it uses as much as digits as its factorization.

1113042043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1113042043 is about 33362.2847389084. The cubic root of 1113042043 is about 1036.3438068603.

Adding to 1113042043 its reverse (3402403111), we get a palindrome (4515445154).

The spelling of 1113042043 in words is "one billion, one hundred thirteen million, forty-two thousand, forty-three".